CN217345359U

CN217345359U - Broken bolt extractor and teaching mould thereof

Info

Publication number: CN217345359U
Application number: CN202221263688.9U
Authority: CN
Inventors: 刘鑫; 付建; 曾帆; 于海洋; 陆佳龙; 黄晶亮; 李多宝; 封昌利; 王徽
Original assignee: PLA Navy Submarine College
Current assignee: PLA Navy Submarine College
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-09-02
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a bolt extractor breaks and teaching mould thereof, extractor include central locator, electric drill, push rod, drive unit, central locator includes locating plate and a plurality of locating pawl, be equipped with the locating hole on the locating plate, the locating plate passes through the locating pawl and can be fixed in on the parts at bolt breakage place, the push rod can be connected with central locator with sliding from top to bottom and can slide from top to bottom under the drive unit effect, the push rod is connected with the electric drill downwards, in the drilling rod of electric drill can wear through the locating hole and bore into bolt breakage to take out bolt breakage. The extractor uses training to use teaching mould, including the cavity casing, cavity casing bottom is equipped with the opening, just be equipped with a plurality of ring flanges on the outer wall of casing. The utility model discloses rational in infrastructure, drilling location is accurate, convenient operation is efficient.

Description

Broken bolt extractor and teaching mould thereof

Technical Field

The utility model relates to an equipment maintenance technical field specifically is a fracture bolt extractor and teaching mould thereof.

Background

In power systems, high-pressure gas systems, supplementary balance systems and other systems, a plurality of machine parts such as diesel engines, generators, steam turbines and the like and various conveying gas, water and oil pipelines connected by flanges need to be fastened and connected by bolts so as to ensure good air tightness and water tightness. The bolt needs to be maintained and replaced in time after being broken, the existing commonly-used broken bolt taking method is that a drilling machine is used for drilling on the broken surface of the bolt firstly, and then a nail taking device is used for taking out the bolt.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a fracture bolt extractor and teaching mould thereof, it has solved among the prior art fracture bolt take out waste time and energy, to the technical problem that operating personnel skill required height, has rational in infrastructure, and drilling location is accurate, the efficient technological effect of convenient operation. The adopted technical scheme is as follows:

the utility model provides a fracture bolt extractor, includes center locator, electric drill, push rod, drive unit, the center locator includes locating plate and a plurality of locating pawl, be equipped with the locating hole on the locating plate, the locating plate can be fixed in the part at fracture bolt place through the locating pawl, the push rod can be connected with the center locator with sliding from top to bottom and can slide from top to bottom under the drive unit effect, the push rod is connected with the electric drill downwards, the drilling rod of electric drill can wear through the locating hole and bore into in the fracture bolt to take out the fracture bolt.

On the basis of the technical scheme, the first end of the positioning claw is hinged with the positioning plate, the second end of the positioning claw is provided with a long hole, and the undamaged bolt on the machine element can pass through the long hole to be in threaded connection with the nut so as to fix the positioning plate on the machine element.

On the basis of the technical scheme, the center locator further comprises a support, the support is fixedly connected with the positioning plate downwards, the push rod penetrates through the support and is in sliding connection with the support, and the driving unit is fixedly arranged on the support and can drive the push rod to slide up and down.

On the basis of the technical scheme, a portable mobile power supply mounting seat is arranged on the support, and the portable mobile power supply can be electrically connected with the electric drill and the driving unit respectively.

On the basis of the technical scheme, the top end of the push rod is provided with a baffle, the baffle can be downwards abutted against the support to prevent the push rod from being separated from the support, and the positioning hole, the drill rod and the push rod are coaxial.

On the basis of the technical scheme, the driving unit comprises a motor fixedly arranged on the support, a gear is fixedly connected to the rotor end of the motor coaxially, and a rack meshed with the gear is arranged on the push rod.

On the basis of the technical scheme, the drill rod comprises the twist drill rod, the outer peripheral surface of the twist drill rod is provided with outer teeth which spirally extend along the axial direction of the drill rod, and when the drill rod is drilled into a broken bolt, the outer teeth can be cut into the broken bolt.

On the basis of the technical scheme, the tooth height of the outer teeth is gradually increased from the drill rod to the push rod.

The utility model provides a fracture bolt extractor is with teaching mould, includes the cavity casing, cavity casing bottom is equipped with the opening, just be equipped with a plurality of ring flanges on the outer wall of casing, through-hole and casing inner chamber intercommunication on the ring flange.

Advantageous effects

The extractor is reasonable in structure, the central positioner and the support can be effectively fixed according to the positions of the broken bolts in different scenes, vibration and offset in the drilling process are reduced, and accurate and quick extraction of the broken bolts can be guaranteed under the condition of large shaking amplitude. The integrated drill rod is drilled, so that the step of replacing the drill bit is omitted, the speed of taking out the broken bolt is increased, the labor is saved, and the bolt replacement efficiency is improved.

Be equipped with a plurality of methods drawing disc on the teaching mould, can simulate various bolt fracture condition in the through-hole on the ring flange, conveniently train operating personnel, can strengthen the student to mechanical pipeline structure's understanding through the teaching mould of simulation equipment environment, improve the level of putting into actual combat.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.

FIG. 1: a schematic three-dimensional structure diagram of the broken bolt extractor;

FIG. 2: a schematic three-dimensional structure of the drill rod;

FIG. 3: the three-dimensional structure schematic diagram of the teaching mould for the broken bolt extractor;

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full breadth of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a structure, device or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, and communication between two elements, and may include direct connection and indirect connection through intervening media, where the meaning of the terms is to be understood by those skilled in the art as appropriate.

Herein, the term "plurality" means two or more, unless otherwise specified.

Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.

Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

As shown in fig. 1, a fracture bolt extractor includes center locator 1, electric drill 2, push rod 3, drive unit and support 5, center locator 1 includes locating plate 11 and two locating claws 12 of locating plate 11 both sides separately, be equipped with the locating hole on the locating plate 11, the first end of locating claw 12 is articulated with locating plate 11, the second end of locating claw 12 is equipped with the axial slot hole, do not damage the bolt on the parts and can pass through the slot hole and the nut spiro union, the nut can compress tightly locating claw 12 on the parts at fracture bolt place, so can be fixed in locating plate 11 on the parts. Support 5 includes square roof and four branches, branch upper end and square roof four corners rigid coupling, the 11 four corners rigid coupling of branch lower extreme and locating plate, push rod 3 and square roof sliding connection, the top of push rod 3 is equipped with baffle 6, baffle 6 can be downwards with the top surface butt of square roof in order to prevent that push rod 3 from deviating from support 5, just drilling rod 4, the 3 coaxial line of push rod on locating hole, the electric drill 2.

The driving unit comprises a motor fixedly arranged on the square top plate, a gear is fixedly connected to the rotor end of the motor coaxially, a rack meshed with the gear is arranged on the push rod 3, the push rod 3 can slide up and down under the action of the driving unit, the push rod 3 is connected with an electric drill downwards, and a drill rod 4 of the electric drill can penetrate through the positioning hole and drill into the fracture bolt so as to conveniently take out the fracture bolt.

In addition, for conveniently carrying and using, be equipped with portable power source mount pad on the support 5, portable power source can respectively with electric drill 2 and drive unit electric connection, so can reduce the volume of extractor, it is more convenient to use.

The drill rod 4 comprises a twist drill rod 41, outer teeth 42 which extend spirally along the axial direction of the drill rod 4 are arranged on the peripheral surface of the twist drill rod 41, the outer teeth 42 are the same as the thread turning directions of the thread grooves in the twist drill rod 41, and when the twist drill rod 41 drills into a broken bolt, the outer teeth 42 can cut into the broken bolt. The tooth height of the external teeth 42 is gradually higher from the drill rod 4 to the push rod 3. The included angle between the rake face of the outer teeth 42 and the axis of the drill rod is 60-100 degrees, so that the purpose of screwing out the broken bolt is achieved.

The utility model provides a teaching aid utensil is used to fracture bolt extractor, includes

cavity casing

7, 7 bottoms of cavity casing are equipped with the opening, just be equipped with a plurality of ring flanges 8 on the outer wall of cavity casing 7, through-hole and 7 inner chambers of cavity casing intercommunication on the ring flange 8, the user can follow the 7 inner chambers of cavity casing in with the through-hole of bolt screw in to ring flange 8 to various situations of simulation fracture bolt, if disconnected bolt outside the hole, disconnected bolt in the hole, the section levels, the section is irregular, section slope etc. with the bolt that the hole flushed.

Working process

Firstly, enabling the undamaged bolt on the machine part to pass through the long hole on the positioning claw 12, and adjusting the positioning claw 12 to enable the axis of the drill rod 4 to be close to the axis of the broken bolt as much as possible;

then, the driving unit and the portable mobile power supply are connected, the driving unit drives the push rod 3 to move downwards, the drill bit part of the drill rod 4 is made to contact with the end face of the broken bolt, and whether the axis of the drill rod 4 is aligned with the center of the end face of the broken bolt is checked;

after calibration and alignment, the electric drill 2 and the portable mobile power supply are switched on, after the drilling machine 2 reaches a rated rotating speed, the driving unit and the portable mobile power supply are switched on again, the push rod 3 drives the electric drill 2 to descend, and the drill rod 4 drills into the broken bolt;

after the outer teeth on the drill rod 4 are cut into the broken bolt, the rotation resistance of the drill rod 4 is increased, the rotation speed is reduced, then the driving unit drives the push rod 3 to move upwards, the drill rod 4 rotates reversely, and the drill rod 4 drives the broken bolt to rotate reversely so as to be screwed out.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. The utility model provides a fracture bolt extractor, its characterized in that includes central locator (1), electric drill (2), push rod (3), drive unit, central locator (1) includes locating plate (11) and a plurality of locating claw (12), be equipped with the locating hole on locating plate (11), locating plate (11) can be fixed on the parts at fracture bolt place through locating claw (12), push rod (3) can be connected with central locator (1) with sliding from top to bottom and can slide from top to bottom under the drive unit effect, push rod (3) are connected with electric drill (2) downwards, drilling rod (4) of electric drill (2) can pass through in the locating hole and bore into the fracture bolt to conveniently take out the fracture bolt.

2. The extractor for broken bolts according to claim 1, wherein a first end of the positioning pawl (12) is hinged with the positioning plate (11), a second end of the positioning pawl (12) is provided with a long hole, through which a bolt undamaged on the machine member can be threaded with a nut to fix the positioning plate (11) on the machine member.

3. The broken bolt extractor according to claim 1, wherein the center positioner (1) further comprises a bracket (5), the bracket (5) is fixedly connected with the positioning plate (11) downwards, the push rod (3) penetrates through the bracket and is connected with the bracket in a sliding manner, and the driving unit is fixedly arranged on the bracket and can drive the push rod (3) to slide up and down.

4. The broken bolt extractor according to claim 3, characterized in that the support (5) is provided with a portable mobile power supply mounting seat, and the portable mobile power supply can be respectively electrically connected with the electric drill (2) and the driving unit.

5. The broken bolt extractor according to claim 3, characterized in that the top end of the push rod (3) is provided with a baffle (6), the baffle (6) can be abutted downwards with the bracket (5) to prevent the push rod (3) from being separated from the bracket (5), and the positioning hole, the drill rod (4) and the push rod (3) are coaxial.

6. The broken bolt extractor according to claim 3, characterized in that the driving unit comprises a motor fixed on the bracket (5), a gear is coaxially fixed on the rotor end of the motor, and the push rod (3) is provided with a rack engaged with the gear.

7. The broken bolt extractor according to any one of claims 1-6, characterized in that the drill rod (4) comprises a twist drill rod (41), and the outer circumferential surface of the twist drill rod (41) is provided with external teeth (42) spirally extending along the axial direction of the drill rod (4), and when the drill rod (4) is drilled into the broken bolt, the external teeth (42) can cut into the broken bolt.

8. The broken bolt extractor according to claim 7, characterized in that the tooth height of the external teeth (42) is gradually higher from the drill rod (4) to the push rod (3).

9. The teaching mold for the broken bolt extractor is characterized by comprising a hollow shell (7), wherein an opening is formed in the bottom of the hollow shell (7), a plurality of flange plates (8) are arranged on the outer wall surface of the hollow shell (7), and through holes in the flange plates (8) are communicated with the inner cavity of the hollow shell (7).